Filling mechanism



Aug. 10, 1943.

W. F. LINSTEDT FILLING MECHANISM Filed Jan. lO, 1941 4 Sheets-Sheet l All@ 10, 1943 w. F. LlNsrl-:DT

FILLING MECHANISM Filed Jan. lO, 1941 4 SheeiZS-SheefI 2 ug. 10, 1943. W, F. LINSTEDT I 2,326,302

FILLING MECHANISM Filed Jan. lO, 1941 4 Sheets-Sheet 3 .QIIHIIIIMM l?? www/@5 All@ 10, 1943- w. Ft L lNsTEDT 2,326,302 I -.FILLING MECHANISM l A 4'Filed Jan. 10, 1941 4 sheets-sheet 4 packaging. Y

" Patented V1(7), `1943 Kraft-Cheesel-Company,` Chicago, Ill.,v la cor- I n' porationofDclawarev This invention relates to improvements-in llingmechanism and' n1 ore partic ularly toj'an ,improvement in `a pump mechanism 1 especially adapted for use in the filling of containers v vith heavy viscous productasuch as cheesef-butter,

and other food products in amoltenstateand other materials having similar characteristics governingthe handling thereofjin respectof its The main objects which will eiciently and eiectively feed afpredetermined quantity of `material `from a Ysource thereof: to a container or Yother packaging def viceg to provide such mechanismfwhchivill be I relatively simple and Whichmay 'be Leasily` maintained 'and cleanedandwhich may be easily rkept in sanitary'condition for use in connection .With the packaging ofrfood products; `and other vobjects and Vadvantages ofthe invention will be understoo'd by'reference tothe followingspeci of the invention are topic;k `vide an apparatusfof the character indicated i ycation andaccompanying drawings (foursheets) Aiirherein there is illustrated:aillingimechanismI embodying a selected 'formof the invention. f

'lnthedrawings; v Fig. 1 is an Yendl'elevation; p yFg.'2 is aside 'elevationjf A Fig. 3 is' a.sectiori"through the'main elements of the!filling.mechanism;V j

Figs. 4, '5 and'6-:aresetions"corresponding to Fig. `34 but showing* successivejsteps in ith'e operation olf-theV mechanism;

' Fig. 7 is a section on thepline TA1 Fig.'8 is a section on the line 88 of Fig; 5; and

Fig'. 9iis a section similar-to Fig.

3 but -s'hovvinga modiied arrangement; i

` Referring now to the drawings, the imlzar'ovedl `mechanism comprisesa hopper VYor other-'receptacle lil'for Va quantity of vmaterial vWhich istov b e fed in measured amounts to areceptaclefsu'ch as indicated atfl l. In `thisinstance,iihe appalratus is disclosedfin connection withth'e packagf ing of cheese in a Wooden Vor'other suitable*oorl-V tainer of generally rectangular iormgi l Containers such as indicated at VvIl.are adapted'tofbe propelled step by step .by means'of a'suitable conveyor 'l2 through the' zone ofjop'erationof. the lling mechanism, the. means 'lor 'actuatingV 'upper surface 14, a tappedopening I5 `andanother openingl. t

fio

TV3/amata@ hopper lathe-reis pivotauymout'- v. ed afvalve'In'ernlberY i8,'th ei saine comprising anw., n

.arcuate plate ,portionlian arm porton 20 and if a hub Zeizv/ hich isirnountedon afsliaft22 j The sliaft -22`is .jou1"nal led in. Suitablebearin'gfs' such;v jV as indicatedat''i provrledotsideof the'hopperff A adjacent its opposite sides:. -'Suitable .5' l

boxesorotier provision Lnil/ayfbe madeA to 'prevent 'leakage thegmaterial'from thehopperwhere i the shaLftjZZ` emerges therefrom; The-curvature of the arcuate plate member. i9 conforms :tothe curvature, o f ,the inheemse-,I4 Orfthe eridgnflern,-Y 1

ber: 'i `3A and *said valve member is adapted to rocked from the position .illustrated 'in Figure 3 whereinitis disnosed'at'one'side @fy the Opening: lato the position illustrated in vFiguren wherein it closessaid opening I 6.

il is provi f Wth an external .flange- 24 ;f or1 facilitating vzat` tachm'entf to said-. lowerl end f of .the (hopper, fof a pump unit structure designatedin its" entirety j 1' by Ythe f referenceL numeral 25. f The flange 24 is Y extended s ufcientlyto facilitate mountingoi 1 thehopper onsupportingbrackets suclias indi- 1 `catedatZS in Figures 1 :and 2. rf

The pump` unit'25 comprises a body, usually a,;casting,y havingthereinva cylindrical chamber 21 and a conduit 28:2. The cylinder" '21 is inv i .j alignmentwith'theopening;lo ofthehoppergsoas Vto communicatethrough said. openingfwithxthe Y rierd bythe upper end of-apistonrod @which is yslidablysupported Vin the end `clgiasnre ,Sega suit-` Thepiston rod133-has its lowerend 'connected f bynieansof an extensionrod313"and.alink 35 to Vthefree end ofV anfarmgBS whichr isgpivotally" mounted; its other end Vas shown at 31 in a bracket orjsimilarfpart carried by a suitable frame structure 'designatedinits entirety at 38. The arm 36 is; rocked on its pivot mounty S'Iby'A v Suitable means, inuthisfinstancei comprising an j i eccentric; 3.9,Yaantricrrng ID. andaonneitinarod I Thevccentric 3 9 is carried by a shaft 42 which isvrotataloly supporte@ by` Suib1e terial is fed from the receiving end of rsaid cylinder to its discharge end, said last; mentioned means comprising an auxiliary conduit disposed y Within said first mentioned conduit and having 10 one end communicating with the interior of the first mentioned conduit adjacent its connection f5 with, the discharge end or" the cylinder, therother l 'end of said auxiliary conduit being connected tok said supply source adjacent the receiving'end of 15,

i the cylinder.k

' '7. In apparatus of the class described, the com;

" bination Vof a cylinder, a piston reciprocableinA said cylinderga discharge nozzle communicating (with one end` of said cylinder, asupply source 20 Y communicating with the other Aor receiving'end' y 'i of said cylinder, piston actuating means comprising a red connected to said piston Yand ex-l tending out of the discharge end of said cylinder, a conduit extending between theopposite f ends of .said'cylindeig valve means controlling communication between `said supply sourceV and *Y i] the receiving end'cf said cylindenvand'a `second valve means controlling communication between;Y

the Vother end ofisaidgcylinder and said discharge 30Y Anozzle and between the discharge end ci said cylinder and said ccnduitfmeans for 4actuating said valves to, at oneV time, establish-,communik cation between the opposite ends of said cylin-V der respectively with said supply source andsaidY `35 discharge nozzle while also closing communicay. y'

tion between the discharge end of said cylinder Y .and said conduit; and 'at another time, -to'closef Y communicationbetween said supply source and i discharge nozzle withithe cylinder while ,estab-Y 5:0

i lishing communication'betweenthe oppositeiends thereof through said conduit. i

- 8. In apparatus of the class described; thecom 'Y bination` of-'a cylinder, a L'piston reciprocableini said cylinder, a discharge nozzle communicating 45 with one end of said cylinder, a supply .source-` communicating with the other orreceiving end ofsaid cylinder,V a' piston actuating means comprisi f ing a rod connected tosaid pistonand extendingv out of the discharge end of said cylinderga con-V '50 duit extending'between thefoppositeends of said cylinder, ,valve means controlling communication'k Y between said 'supply sourcexandthe receiving end Iof said cylinder, a second valve means'contro'lling communication between the other endof-55 said cylinder and saiddischarge nozzle and between the discharge end otl said cylinder and'fsaid end of said `cylinderand said conduit, and at an@ other time,A toijclosel communication bet'ttfeen'g-saiel i supply source and discharge nozzle with thecyl,'

inder Y while' establishing communication between the opposite"fendsllthereof thrcughsaid conduit@y Y v and'restricted flowmeans connectedfto the discharge endportion of said cylinder for permitting'the escape from the volume of material fed'.v yto the dischargeend portion of vthecylinder,V of

any amount. ofi such material in excess nof the .f capacity of said dischargeendiportion ofthe cylindeiyfthk'e" restricted character of Vsaid -means j serving to',` cause compressionY ofgthe material re-.Y maining inthedeliveryjend portion oithg'e-cyl-Y j inder.

9. In apparatus ofthe class described,,the'corn-AV v bination of! a cylinder, rt-piston recprclc'ablei'nY` y said ,cylindeiya discharge nozzlecomrnunicating? 1f K withl oneV end cf said cylinder, a "supply/source Y communieating with the other orpreceivingnend y g of saidcylinder, a piston actuating. means cfornprising a rod connected toisaid'pistongandex- Vtending outfof thegdischargeend ofsaid cylin- Y der, a conduit' extending rbetvvL-ie'n the'A opposite g 1i ends 'pf said cylinder;A Vvalve Vmeans fcontr'olling communication' betweensaid'fSllDply i source and therec'eiving end' of saidzcylinder,`V a second? valve'Y means VC.0!11519Hill-ef mmimication' between thev i *A i other lend 0f Seid 'Cylinder and VSaid, discharge nozzleand between theY discharge end of-saidicylg.

inder and said'c'cnduit, `meansfori-actuating said p valves topatone time, establish,communication i between the opposite ends ofsaid cylinder respec tively with saidsupply rsourceandsaliddischarge;` Y

nozzle while'also closing communication between V the discharge" end of saidcylin'der" and 'saidcorfY duit, andaiI another time, ytoy closecommunicatioli- Y lbetween said supply vsource,andgdischarge nozzlev 'Y y with the VcyljlfliderfWhile establishing communica" l vtion-between the ,opposite ends thereofthrog f said: conduit;A and restrictedfpassage g means con `v nected to -therdischarge.endfportion of Asaid con' duit for permitting the ,escape Yfrom th'ef volume of material'fed througlr said conduitV tothe' de'V livery; end portion of the cylinderfof fany amyiiuntA4 of suchmateriall in" excess yof thejcapacityfolv Ysaid dischargeY end portion fof the cylinder, they,

Y restrictedV character o-ts'aid passageway serving Y tov cause compression of thefmaterialied totheY Y delivery end portion of thecylinder.; ,Y A

conduit, meansV foract'uating said valves tag-'at one time,restablish cornrifninication,betweenthe#y oppositek ends Vof said cylinder.r respectively. with Vsaid supply source and said discharge nozzle while5 also vclosing communication between the discliarge.4 

